selnium dev中的滚动条

1.需要滚动div
js = "document.getElementsByClassName('el-table__body-wrapper')[0].scrollLeft=1000;"
driver.execute_script(js)
2.滑动至目标元素可见

mm= driver.find_element_by_class_name('im-last-msg')

driver.execute_script("arguments[0].scrollIntoView();",mm)